/* Silent Key Technologies, shared site styles */
:root{
  --bg:#0a0d14; --bg2:#0e121b; --card:#121826; --card2:#161d2e;
  --line:rgba(255,255,255,.08); --line2:rgba(255,255,255,.14);
  --ink:#eaf0f7; --ink2:#c6d0de; --mut:#94a0b4; --dim:#5f6b7e;
  --accent:#2e9bff; --accent2:#5bb8ff; --accent-dim:rgba(46,155,255,.12);
  --good:#35d0a0; --good-dim:rgba(53,208,160,.12);
  --gold:#c9a84c; --gold-dim:rgba(201,168,76,.12);
  --max:1140px;
  --font:"Inter",-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--font);font-weight:400;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* headings */
h1,h2,h3{letter-spacing:-.02em;line-height:1.1}
.eyebrow{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:700}
.eyebrow.gold{color:var(--gold)}
.lead{color:var(--mut);font-size:clamp(15px,2vw,17px);max-width:640px;line-height:1.7}

/* header / nav */
header{position:sticky;top:0;z-index:40;background:rgba(10,13,20,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:22px;height:66px}
.brandmark{display:flex;align-items:center;gap:11px}
.brandmark img{height:34px}
.brandmark .bt{font-weight:600;font-size:14.5px;letter-spacing:.02em;line-height:1.05}
.brandmark .bt small{display:block;font-size:9.5px;letter-spacing:.28em;text-transform:uppercase;color:var(--mut);font-weight:500}
.nav .sp{flex:1}
.nav a.link{color:var(--ink2);font-size:14px;font-weight:500;transition:color .15s}
.nav a.link:hover{color:var(--ink)}
.btn{display:inline-block;background:var(--accent);color:#05121f;font-weight:700;padding:10px 18px;border-radius:9px;font-size:14px;transition:.15s;border:1px solid transparent;cursor:pointer}
.btn:hover{box-shadow:0 8px 26px rgba(46,155,255,.32)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line2)}
.btn.ghost:hover{border-color:var(--accent);box-shadow:none}
.btn.sm{padding:8px 15px;font-size:13px}
.btn.gold{background:var(--gold);color:#1a1608}
.btn.gold:hover{box-shadow:0 8px 26px rgba(201,168,76,.3)}

/* hero */
.hero{padding:96px 0 60px;text-align:center;position:relative}
.hero::before{content:"";position:absolute;inset:0 0 auto 0;height:640px;background:radial-gradient(760px 420px at 50% -6%,rgba(46,155,255,.16),transparent 64%);pointer-events:none;z-index:-1}
.hero-logo{width:96px;margin:0 auto 26px;filter:drop-shadow(0 12px 40px rgba(46,155,255,.32))}
.hero h1{font-size:clamp(34px,6vw,62px);font-weight:700;letter-spacing:-.03em}
.hero h1 .g{color:var(--accent2)}
.hero .sub{color:var(--mut);font-size:clamp(16px,2.3vw,20px);max-width:680px;margin:22px auto 0;line-height:1.65}
.cta-row{margin-top:32px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.roster{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:40px}
.roster span{font-weight:600;font-size:13px;color:var(--ink2);border:1px solid var(--line);background:var(--bg2);padding:7px 15px;border-radius:30px}
.roster span em{font-style:normal;color:var(--mut);font-weight:500}

/* trust strip */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg2)}
.strip .row{display:flex;flex-wrap:wrap;justify-content:center;gap:12px 30px;padding:20px 0}
.strip .it{font-size:13px;color:var(--mut);display:flex;align-items:center;gap:9px}
.strip .it b{color:var(--ink);font-weight:600}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent);flex-shrink:0}
.dot.g{background:var(--good);box-shadow:0 0 10px var(--good)}
.dot.gold{background:var(--gold);box-shadow:0 0 10px var(--gold)}

/* sections */
section{padding:76px 0}
.sec-head{text-align:center;max-width:680px;margin:0 auto 46px}
.sec-head h2{font-size:clamp(26px,4vw,40px);font-weight:700;margin:10px 0 12px}
.sec-head .lead{margin:0 auto}

/* pillars */
.pillars{display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));gap:16px}
.pillar{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px}
.pillar .k{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);font-weight:700}
.pillar h3{font-size:19px;font-weight:600;margin:12px 0 8px}
.pillar p{color:var(--mut);font-size:14px}

/* product cards (home) */
.pgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.pcard{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:26px;display:flex;flex-direction:column;transition:.18s;position:relative;overflow:hidden}
.pcard::before{content:"";position:absolute;inset:0 0 auto 0;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:0;transition:.2s}
.pcard:hover{border-color:#2c3f5c;transform:translateY(-3px)}
.pcard:hover::before{opacity:1}
.pcard .top{display:flex;align-items:center;gap:11px;margin-bottom:5px}
.pcard .nm{font-size:22px;font-weight:700;letter-spacing:-.01em}
.pcard .cat{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--mut);margin-bottom:14px}
.pcard p.d{color:var(--ink2);font-size:14.5px;flex:1;margin-bottom:16px;line-height:1.6}
.pcard .proof{font-size:12.5px;color:var(--ink);border-top:1px solid var(--line);padding-top:13px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.pcard .go{font-weight:700;color:var(--accent);font-size:14px}
.badge{font-size:10px;font-weight:800;letter-spacing:.06em;padding:4px 9px;border-radius:20px;text-transform:uppercase}
.badge.live{background:var(--good-dim);color:var(--good);border:1px solid rgba(53,208,160,.4)}
.badge.beta{background:var(--accent-dim);color:var(--accent2);border:1px solid rgba(46,155,255,.4)}

/* flagship band */
.band{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.flag{display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.flag h2{font-size:clamp(24px,3.4vw,34px);font-weight:700;margin:12px 0 14px}
.flag p{color:var(--mut);font-size:15px;margin-bottom:14px}
.mechs{display:grid;gap:12px}
.mech{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.mech h4{font-size:14.5px;font-weight:600;margin-bottom:4px;display:flex;align-items:center;gap:9px}
.mech p{font-size:13px;color:var(--mut);margin:0}

/* trust dims */
.grid4{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.tcard h3{font-size:16px;font-weight:600;margin-bottom:7px}
.tcard p{color:var(--mut);font-size:14px}

/* venture card */
.venture{background:linear-gradient(135deg,rgba(53,208,160,.06),rgba(46,155,255,.04));border:1px solid var(--line2);border-radius:18px;padding:30px;display:flex;gap:26px;align-items:center}
.venture .vc-body h3{font-size:20px;font-weight:700;margin-bottom:8px}
.venture .vc-body p{color:var(--mut);font-size:14.5px;margin-bottom:14px}

/* footer */
footer{border-top:1px solid var(--line);background:var(--bg2);padding:52px 0 40px}
.foot-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;margin-bottom:36px}
.foot-brand .brandmark{margin-bottom:14px}
.foot-brand p{color:var(--mut);font-size:13.5px;max-width:300px}
.foot-col h5{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--mut);font-weight:700;margin-bottom:14px}
.foot-col a{display:block;color:var(--ink2);font-size:14px;margin-bottom:10px;transition:color .15s}
.foot-col a:hover{color:var(--accent)}
.foot-bar{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;align-items:center}
.foot-bar .cp{font-size:12.5px;color:var(--dim)}
.foot-strip{display:flex;gap:16px;flex-wrap:wrap}
.foot-strip a{font-size:12px;color:var(--mut);text-transform:uppercase;letter-spacing:.06em}
.foot-strip a:hover{color:var(--ink)}

/* ===== product detail pages ===== */
.p-hero{padding:70px 0 30px}
.p-hero .inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.p-hero .kicker{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.p-hero h1{font-size:clamp(32px,5vw,52px);font-weight:700;letter-spacing:-.03em;margin-bottom:16px}
.p-hero .sub{color:var(--mut);font-size:clamp(15px,2vw,18px);line-height:1.65;margin-bottom:26px}
.p-hero .cta-row{justify-content:flex-start;margin-top:0}
.p-wordmark{font-size:26px;font-weight:800;letter-spacing:-.02em}
.p-wordmark .a{color:var(--accent)}
.shot{border:1px solid var(--line2);border-radius:16px;overflow:hidden;background:var(--card);box-shadow:0 30px 70px rgba(0,0,0,.45)}
.shot img{width:100%;display:block}
.shot.pad{padding:14px}

.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.fcard{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px}
.fcard .ic{width:38px;height:38px;border-radius:10px;background:var(--accent-dim);display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:var(--accent);font-weight:800}
.fcard h3{font-size:16px;font-weight:600;margin-bottom:7px}
.fcard p{color:var(--mut);font-size:13.5px}

.spec{display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:8px 26px}
.spec .r{display:flex;justify-content:space-between;gap:16px;padding:15px 0;border-bottom:1px solid var(--line)}
.spec .r .k{color:var(--mut);font-size:13.5px}
.spec .r .v{color:var(--ink);font-size:13.5px;font-weight:500;text-align:right}

/* pricing */
.price-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px}
.tier{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:24px;position:relative}
.tier.feat{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent-dim)}
.tier .tag{position:absolute;top:-11px;left:24px;background:var(--accent);color:#05121f;font-size:10px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:20px}
.tier h4{font-size:15px;font-weight:600;color:var(--mut);text-transform:uppercase;letter-spacing:.08em}
.tier .amt{font-size:30px;font-weight:800;letter-spacing:-.02em;margin:10px 0 2px}
.tier .amt small{font-size:13px;font-weight:500;color:var(--mut)}
.tier ul{list-style:none;margin-top:16px;display:grid;gap:9px}
.tier li{font-size:13.5px;color:var(--ink2);display:flex;gap:9px;align-items:flex-start}
.tier li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);margin-top:7px;flex-shrink:0}

/* callout / cross-link */
.callout{background:linear-gradient(135deg,var(--accent-dim),transparent);border:1px solid var(--line2);border-radius:18px;padding:34px;text-align:center}
.callout h2{font-size:26px;font-weight:700;margin-bottom:10px}
.callout p{color:var(--mut);max-width:560px;margin:0 auto 22px}

.subnote{font-size:12.5px;color:var(--dim);margin-top:12px}

/* ===== investors ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;text-align:center}
.stat .n{font-size:34px;font-weight:800;letter-spacing:-.02em;line-height:1}
.stat .l{font-size:11.5px;color:var(--mut);margin-top:8px;line-height:1.4}
.rate{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.rate .rr{display:grid;grid-template-columns:2fr 1.3fr;border-bottom:1px solid var(--line);align-items:center}
.rate .rr:last-child{border-bottom:none}
.rate .rr.h{background:var(--card2)}
.rate .c{padding:13px 22px;font-size:13.5px}
.rate .rr.h .c{font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--mut);font-weight:600}
.rbar{display:flex;align-items:center;gap:12px}
.rbar .trk{height:5px;background:rgba(255,255,255,.06);border-radius:3px;flex:1;overflow:hidden}
.rbar .fil{height:100%;border-radius:3px;background:var(--accent)}
.rbar .sc{font-size:14px;font-weight:700;color:var(--accent);min-width:30px;text-align:right}
.mrow{display:flex;gap:15px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--line)}
.mrow:last-child{border-bottom:none}
.mrow .md{width:8px;height:8px;border-radius:50%;flex-shrink:0;margin-top:7px;background:var(--accent)}
.mrow h4{font-size:14.5px;font-weight:600;margin-bottom:5px}
.mrow p{font-size:13.5px;color:var(--mut);line-height:1.65}
.founder{background:var(--card);border:1px solid var(--line2);border-radius:18px;padding:32px;display:flex;gap:26px;align-items:flex-start}
.founder .av{width:70px;height:70px;border-radius:50%;background:linear-gradient(135deg,var(--accent-dim),var(--gold-dim));border:1px solid var(--line2);flex-shrink:0;display:flex;align-items:center;justify-content:center;overflow:hidden}
.founder .av img{width:100%;height:100%;object-fit:cover}
.founder h3{font-size:21px;font-weight:700}
.founder .ft{font-size:13px;color:var(--mut);margin:2px 0 12px}
.founder p{font-size:14px;color:var(--ink2);line-height:1.7;margin-bottom:14px}
.creds{display:flex;gap:8px;flex-wrap:wrap}
.cred{font-size:11px;background:var(--accent-dim);color:var(--accent2);border:1px solid rgba(46,155,255,.25);padding:4px 11px;border-radius:6px}
.use-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.use{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px;text-align:center}
.use .pc{font-size:26px;font-weight:800;color:var(--accent)}
.use .ul{font-size:12.5px;color:var(--mut);margin-top:6px}
.contact-cta{background:linear-gradient(135deg,rgba(46,155,255,.09),rgba(201,168,76,.05));border:1px solid var(--line2);border-radius:20px;padding:44px;text-align:center}
.contact-cta h2{font-size:30px;font-weight:700;margin-bottom:12px}
.contact-cta p{color:var(--mut);max-width:500px;margin:0 auto 26px}
.email-pill{display:inline-flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--line2);color:var(--accent2);font-size:15px;padding:14px 26px;border-radius:12px;font-weight:600;max-width:100%;word-break:break-word;text-align:center}
.email-pill:hover{background:var(--accent-dim)}

/* responsive */
@media(max-width:920px){
  .flag,.p-hero .inner{grid-template-columns:1fr;gap:30px}
  .foot-top{grid-template-columns:1fr 1fr}
  .stats,.use-grid{grid-template-columns:1fr 1fr}
  .feature-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .pillars,.pgrid,.feature-grid{grid-template-columns:1fr}
  .spec{grid-template-columns:1fr}
  .rate .rr{grid-template-columns:1.6fr 1.2fr}
  .nav a.link{display:none}
  .venture{flex-direction:column;text-align:center}
  .founder{flex-direction:column}
}
@media(max-width:520px){
  .stats,.use-grid,.foot-top{grid-template-columns:1fr}
  section{padding:56px 0}
  .contact-cta{padding:32px 20px}
  .email-pill{font-size:13px;padding:12px 18px}
  .callout{padding:28px 20px}
}